CAVITATION DAMAGE TO THIS TANKER PROPELLER REPAIRED WITH BELZONA
Industry: Marine (MRNE)
Application: SOS-Ships and Offshore Structures (SOS)
Substrate: Bronze
Customer Location: Oil tanker in Argentina, South America
Application Date: April 1997
Products:
Belzona® 1321 (Ceramic S-Metal)
Belzona® 1311 (Ceramic R-Metal)
Problem: The large difference in pressure on the edges of this bronze propeller caused cavitation bubbles that in turn damaged the metal substrate after imploding onto the surface.
Photograph Descriptions
- Aft view of the tanker
- Surface preparation of the bronze propeller
- Close up view of grinding profile
- Finished application
Application Situation
Cavitation damage to a 12-foot diameter tanker propeller.
Application Method
The application was carried out in accordance with Belzona Know-How System Leaflet SOS-2.
Belzona Facts
Any polymeric coating that is subject to cavitation will be sacraficial, how-ever it is a lot more cost effective than welding and remachining. It is very time consuming to braze bronze and requires skill to rebuild significant metal loss.
